公开(公告)号：US06683691B2

公开(公告)日：2004-01-27

申请号：US09876099

申请日：2001-06-08

申请人： Ruediger Grunwald ,  Uwe Griebner ,  Thomas Elsaesser ,  Volker Kebbel ,  Werner Paul Otto Jueptner ,  Hans-Juergen Hartmann

发明人： Ruediger Grunwald ,  Uwe Griebner ,  Thomas Elsaesser ,  Volker Kebbel ,  Werner Paul Otto Jueptner ,  Hans-Juergen Hartmann

IPC分类号： G01B902

CPC分类号： G02B27/0977 ,  G01J11/00 ,  G02B27/09 ,  G02B27/0911 ,  H01S3/0014

摘要： Disclosed in a method and arrangement for performing a spatially resolved non-collinear measurement of the autocorrelation function of the first or higher order by means of a matrix of beam shaping individual elements, such that there is a local splitting of the beam into a beam matrix of conical component beams, where each component beam represents spatially integrated information regarding the partial area of the matrix through which it passes, the interference resolution is thus determined by the matrix geometry, and the interference pattern produced in space by each component beam in a certain plane imaged on a matrix camera supplies an autocorrelation function of the first order or, by utilizing non-linear interactions in a suitable medium, of a higher order accordingly, so that the coherence time or the pulse period of individual laser pulses or trains of multiple laser pulses can be determined as a function of location.

摘要翻译： 公开在用于通过波束整形单个元件的矩阵执行第一或更高阶的自相关函数的空间解析的非共线测量的方法和装置，使得存在将波束局部分裂成波束矩阵 圆锥分量光束，其中每个分量光束表示与其通过的矩阵的部分区域有关的空间综合信息，因此干涉分辨率由矩阵几何形状确定，并且空间中由每个分量光束产生的干涉图案 在矩阵相机上成像的平面提供第一级的自相关函数，或者通过在合适的介质中利用较高级的非线性相互作用相应地提供更高阶的相关性，使得单个激光脉冲或多个列的列的相干时间或脉冲周期 可以将激光脉冲确定为位置的函数。